123 lines
4.1 KiB
Python
123 lines
4.1 KiB
Python
"""
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Defines forms for providing validation of embargo admin details.
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"""
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from django import forms
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from embargo.models import EmbargoedCourse, EmbargoedState, IPFilter
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from embargo.fixtures.country_codes import COUNTRY_CODES
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import ipaddr
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from xmodule.modulestore.django import modulestore
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from opaque_keys import InvalidKeyError
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from opaque_keys.edx.keys import CourseKey
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from opaque_keys.edx.locations import SlashSeparatedCourseKey
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class EmbargoedCourseForm(forms.ModelForm): # pylint: disable=incomplete-protocol
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"""Form providing validation of entered Course IDs."""
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class Meta: # pylint: disable=missing-docstring
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model = EmbargoedCourse
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def clean_course_id(self):
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"""Validate the course id"""
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cleaned_id = self.cleaned_data["course_id"]
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try:
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course_key = CourseKey.from_string(cleaned_id)
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except InvalidKeyError:
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try:
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course_key = SlashSeparatedCourseKey.from_deprecated_string(cleaned_id)
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except InvalidKeyError:
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msg = 'COURSE NOT FOUND'
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msg += u' --- Entered course id was: "{0}". '.format(cleaned_id)
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msg += 'Please recheck that you have supplied a valid course id.'
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raise forms.ValidationError(msg)
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if not modulestore().has_course(course_key):
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msg = 'COURSE NOT FOUND'
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msg += u' --- Entered course id was: "{0}". '.format(course_key.to_deprecated_string())
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msg += 'Please recheck that you have supplied a valid course id.'
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raise forms.ValidationError(msg)
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return course_key
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class EmbargoedStateForm(forms.ModelForm): # pylint: disable=incomplete-protocol
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"""Form validating entry of states to embargo"""
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class Meta: # pylint: disable=missing-docstring
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model = EmbargoedState
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def _is_valid_code(self, code):
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"""Whether or not code is a valid country code"""
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return code in COUNTRY_CODES
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def clean_embargoed_countries(self):
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"""Validate the country list"""
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embargoed_countries = self.cleaned_data["embargoed_countries"]
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if not embargoed_countries:
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return ''
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error_countries = []
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for country in embargoed_countries.split(','):
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country = country.strip().upper()
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if not self._is_valid_code(country):
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error_countries.append(country)
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if error_countries:
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msg = 'COULD NOT PARSE COUNTRY CODE(S) FOR: {0}'.format(error_countries)
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msg += ' Please check the list of country codes and verify your entries.'
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raise forms.ValidationError(msg)
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return embargoed_countries
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class IPFilterForm(forms.ModelForm): # pylint: disable=incomplete-protocol
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"""Form validating entry of IP addresses"""
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class Meta: # pylint: disable=missing-docstring
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model = IPFilter
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def _is_valid_ip(self, address):
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"""Whether or not address is a valid ipv4 address or ipv6 address"""
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try:
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# Is this an valid ip address?
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ipaddr.IPNetwork(address)
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except ValueError:
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return False
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return True
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def _valid_ip_addresses(self, addresses):
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"""
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Checks if a csv string of IP addresses contains valid values.
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If not, raises a ValidationError.
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"""
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if addresses == '':
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return ''
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error_addresses = []
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for addr in addresses.split(','):
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address = addr.strip()
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if not self._is_valid_ip(address):
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error_addresses.append(address)
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if error_addresses:
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msg = 'Invalid IP Address(es): {0}'.format(error_addresses)
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msg += ' Please fix the error(s) and try again.'
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raise forms.ValidationError(msg)
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return addresses
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def clean_whitelist(self):
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"""Validates the whitelist"""
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whitelist = self.cleaned_data["whitelist"]
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return self._valid_ip_addresses(whitelist)
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def clean_blacklist(self):
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"""Validates the blacklist"""
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blacklist = self.cleaned_data["blacklist"]
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return self._valid_ip_addresses(blacklist)
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